Optus is an Australian telecommunications company, delivering more than 11 million services to our customers every day across mobile, broadband and digital solutions.

The Principal is responsible for delivering end-to-end Core Network design, configuration, performance and automation outcomes across service chains, ensuring alignment to defined design intent, operational requirements and automation guardrails.

The role operates across Core domains including Packet Core, Voice/IMS, Policy & Charging, Signalling, Subscriber Management, Network Exposure and Telco Cloud, translating system-level direction into practical engineering outcomes.

What You'll Do

• Deliver and optimise core network design, configuration, and automation across service chains, ensuring alignment with overall E2E design intent.
• Maintain standardised interfaces, parameters, and configurations across domains, systems, and vendors.
• Analyse cro...